Rotair D425T4F, Operating Maintenance Instructions & Part List

Page: 18 / 101

USER'S AND
MAINTENANCE
MANUAL
Date: 22/12/2016
Code MAN D425T4F ENG
Motor compressor D425T4F
Revision 00
Copyright © 2014, ROTAIR S.P.A. - All rights reserved This manual is intellectual property of ROTAIR S.P.A. Its
full or partial reproduction is forbidden under any form, on any support and by any means, without the written
authorization by ROTAIR S.P.A.
Page
18/57
4.3 Residual risk
Avoid standing in front of the compressed air discharges. The direct exposure to the air jet may cause
medium severity injuries because of the strength and speed of the compressed air.
The machine must operate outdoor, because of the presence of the engine and of the relevant exhaust
gases.
It is strictly forbidden to operate the machine in indoor environments whose atmosphere is
made of vapours or mixtures of corrosive or explosive gases.
When performing demolition, drilling, sandblasting activities or any other operation that generates dust the tool
needs to be connected to the compressor through a pressure-resistant hose of sufficient length to keep the
machinery away from the work area, thus preventing the clogging of both the exhaustion filters mounted on the
unit and of the radiator for the cooling of the lubrication and cooling liquids. Even in this case, a good operator
will locate the machinery leeside versus the work area.
The machinery has been designed and built to work with the hood/doors closed and - consequently - it is
forbidden to keep it open when the engine is on, because - besides generation harmful sound emissions - the
required internal ventilation would be interrupted, and this is instead indispensable for the appropriate operation
of the compressor.
Make sure that the hood/doors is/are closed.
Even selecting the hoses to connect the machinery to the tool, make sure that they are sized as appropriate,
taking into account their length, the volume of air which needs to pass through them and the service pressures:
if the hoses show a too small diameter or excessive length, the air flow would interrupt, with subsequent loss
of load and poor performance of the tool.
The hoses which convey compressed air to from the machinery to the tool, or to any device applied, is to be
provided with a tap located at the end which is connected to the tool; the tap shall be held closed during the
connection of the hoses to both the machinery and the tool in order to prevent an inappropriate opening of the
tap on board the machine from generating strong flickering of the piping, which may cause injuries. Before
disconnecting any hose, make sure there is no pressure inside.